IEEE International Symposium on Consumer Electronics, 2004最新文献

{"title":"Evaluation and integration of markov noise reduction technique in H264/AVC","authors":"K. Hachicha, P. Garda","doi":"10.1109/ISCE.2004.1375979","DOIUrl":"https://doi.org/10.1109/ISCE.2004.1375979","url":null,"abstract":"When the sequence n0i.w increases. the residue restilting from the dgerence hetween the matching macroblocks in the frame coded in predictive mode and the hest reference frame increases dramaticallv and so it i the sanie with the hit rate. One classical soliition consists in tising,/or prediction the 5 ollowed reference frames in order to find the best possihle matching macroblock. However, even with the hest match. the variation of lriminunce which reflects noise still e.rists in the residue to code. Moreover, from an implementation point of view, there would be additional processing delaw and higher memow reqiiirements. To solve this problem, we propose to embed in the H.264/A VC encoder, a technique of motion detection hased on Markov Random Fields which relies on robrrst moving pi.rel segmentation and reduces the variation of the honinance thot more ojien results,from noise rather t hmf rom an actiial motion occurring between matching macrohlocks. This algorithm needs onlv 3 reference frames to detect real niotion beween matching marroblocks and it enables decreasing the bit rate while maintaining the quality of compressed sequence. Index Terms H 2 6 4 / A V C , Markov random fields, motion estimation, noise reduction.","PeriodicalId":169376,"journal":{"name":"IEEE International Symposium on Consumer Electronics, 2004","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134410388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A high definition H.264/AVC hardware video decoder core for multimedia SoC's","authors":"Y. Hu, A. Simpson, K. McAdoo, J. Cush","doi":"10.1109/ISCE.2004.1375974","DOIUrl":"https://doi.org/10.1109/ISCE.2004.1375974","url":null,"abstract":"","PeriodicalId":169376,"journal":{"name":"IEEE International Symposium on Consumer Electronics, 2004","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134644098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Is it time to rethink PCA test strategies in consumer electronics?","authors":"S. Mozar, Fabian Aust","doi":"10.1109/ISCE.2004.1376001","DOIUrl":"https://doi.org/10.1109/ISCE.2004.1376001","url":null,"abstract":"This paper challenges the stafiis ytm in resting .stra/egie.y of printed cif-ciiit hoard assemh1ie.s. A paradigm shi/ifi.om testing qnuliry into prodiicts to hidding y t ~ u l i ~ t in o prodticts is proposed. Automution und udvunced de.vign and munnfactoring techniyires provide the n1ethod.v /hut enable a change h 7 the wav we think ol~ont testing, ' Index Terms ATE, PCA Testing Quality Improvement, Test Strategy. 1. ~NTRODUCTION D EFECTS in electronic products occur for one of three reasons. These are due to material related problems, design problems, or due to process related damage. Testing strategies should be built around these possible causes and should be targeted at reducing overall costs of producing products. Current test strategies were appropriate when introduced. Changes brought about by automation, improvements in design automation, quality control and reliability should result in test strategies being rethought to help reduce overall manufacturing costs. 11. HISTORIC TEST PRINCIPLES When printed circuit boards were manually assembled, quality systems were designed lo inspect quality into products rather than ensure that quality was built inio products. The scenario was that products had components and materials inspected at goods inwards, and in an attempt to minimize repair costs testing was conducted at strategic places in the production process. This test philosophy, which is still in used today, is to test quality into products, rather than to verify functionality and to help align and calibrate products. Manut:dcturers of autometic test equipment (ATE) justify the expenditure of complex and expensive test syslems with early fault detection (i.e. tesling quality into a product). The wellknown logarithmic rule is used, where the cost of repairs increases by a factor often for every step in the manufacturing process during which the problem is not identified. It is accepted as a way of life that production yield will be less than perfect. Increased product complexity and the associated complex testing problems is the other reason that justifies the huge investments in test systems. When the manufacturing process was largely manual such lest strategies were appropriate. With the highly automated processes that are high repeatable, do test strategies devised for a predominantly manual production process still apply? 111. FACTORS AFFECTING PRODUCTION YIELD In determining a test strategy, one must consider what one wants to achieve with the test or tests. According to Werner \" ... In order to design the oprimrim test urrungemenrs one [ I 1 miissf idenlib thefuults the ferf svstem i.s ~ i n g to./; .r...\" The probability of a defect occurring is higher the more complex a Printed Circuit Board Assembly (PCA) is. Complexity can be defined using Oresjo's Complexity Index PI: C, = ((#C+#J)/IOO} *S*M*D (1) Where Ci Complexity Index #C ~ Number of Components #J Number of Solder Joints S ~ Board sides ( I Double Sided, 0.5 -Single Sided) M ","PeriodicalId":169376,"journal":{"name":"IEEE International Symposium on Consumer Electronics, 2004","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130780374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"VTEG: VHDL test environment generator","authors":"S. Saha, S. Sriram","doi":"10.1109/ISCE.2004.1376003","DOIUrl":"https://doi.org/10.1109/ISCE.2004.1376003","url":null,"abstract":"The consumer electronics market is flooding with new emhedded system products. Programmable logic devices (PLDs) are. most ofthe lime. un integra1pur.l of these con.szmier prodzicrs. With ever-increasing comp1e.rit.v in Hardwure design language (HDL) based designs Jbr PLDs, and driven hv /he pressure,fbr time to market. designers and res/ engineer.^ wan/.fosl Jimclional verification of /heir HDL hased designs. This paper discusses the VTEG tool. which is an upprouch ro anlomute a generic lest hench environment. which can he used across HDL modules/zmit.s. With the inre+ce derails of the design as input, /he VTEG tool generates VHDL modules for driving and monitoring interfaces of rhe design. The motivarion behind /he development of /he tool is to uutomnte tesr-hench generation. easy exrendihility of the test hench in case of design chbnges. better tesr hench maintenance. and better understandahi1it.v for reuse purposes. This tool is aimed to reduce the cycle time of test bench genevation for verification of HDL designs resulting bi improvemenf of design productivity. Index Terms Automation, Verification, VHDL, Test-Bench, HDL.","PeriodicalId":169376,"journal":{"name":"IEEE International Symposium on Consumer Electronics, 2004","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128242083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A R-D optimization based MPEG -2 quantization algorithm","authors":"Jiansong Wang, Jinghui Chu, Site Yu","doi":"10.1109/ISCE.2004.1375896","DOIUrl":"https://doi.org/10.1109/ISCE.2004.1375896","url":null,"abstract":". In this paper, a R-D optimization based decision region adaptive algorilhm f i r MPEG-2 quantizer is pre.wn/ed The decision level of quantizer is adaptively selected hy searching the minimrrii R-D Lagrangian cost, taking into consideration of' the dis/rihir/ion of inpnt soiirce. This approach makes the R-D characteristic of' yirantizer has an estirnahle improvement. The PSNR for htminance and chrominance components can he increased by 0.5 dB and 0. I dB respectively in comparision wit/i the TM.5 qirantization method'. Index Ternis -MPEG-2 quantizer, TM5, Source distribution, Region adaptive quantization","PeriodicalId":169376,"journal":{"name":"IEEE International Symposium on Consumer Electronics, 2004","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133022622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance prediction of dab modulation and transmission using matlab modeling","authors":"L.M. Gaetzi, M. Hawksford","doi":"10.1109/ISCE.2004.1375951","DOIUrl":"https://doi.org/10.1109/ISCE.2004.1375951","url":null,"abstract":"Abstract — A Simulink-Matlab simulation model is described that enables an accurate performance prediction of complete DAB (digital audio broadcasting) transmission channels. Embedded compiled C-code subroutines include modulation protocols, error correction and MPEG layer-2 perceptual audio coding. Rapid assessment of critical design related factors could be performed that include channel interference, multi-path reflection and a range of modulation-parameters. Software is PC compatible with both DAB system and transmission channel configurable using a bespoke graphical user interface, which facilitates changing on the fly modulation and transmission-path related parameters. Overall audio quality can also be assessed 1 . Index Terms — DAB, Matlab, Modulation, Simulation. I. I NTRODUCTION TO DAB IGITAL audio broadcasting (DAB) was developed in the early 1990’s by the European consortium Eureka 147 [1], mainly to replace the widely used analogue frequency modulation (FM) broadcasting system. The VHF band is a scarce resource in many parts of the world, so there was a need for a spectrally more efficient modulation method than FM. In DAB, this is achieved by multiplexing several programmes into a so-called ensemble with a bandwidth of 1.536 MHz, where the number of programmes per ensemble is flexible and depends on individual programme bandwidth requirements. Further, conventional analogue techniques do not provide satisfactory performance in a mobile environment, because they are highly affected by multi-path propagation and thus fading. In DAB, orthogonal frequency division multiplex (OFDM) has been chosen to overcome the effects of multi-path propagation, enabling the system to operate in so-called single-frequency networks (SFN). The modeling and processing of a DAB system is well suited for Simulink and Matlab. Less common blocks can be implemented in Simulink by programming appropriate 'C'-code that can be compiled and dynamically linked to the model by means of","PeriodicalId":169376,"journal":{"name":"IEEE International Symposium on Consumer Electronics, 2004","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122212403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance improvement of a decision-feedback equalizer in terrestrial dtv receivers by reduction of error propagation","authors":"Hyoung-Nam Kim, S. Park, Seung Won Kim","doi":"10.1109/ISCE.2004.1375944","DOIUrl":"https://doi.org/10.1109/ISCE.2004.1375944","url":null,"abstract":"This paper presents a novel equalization methodfor ATSC terrestrial digital televi.sion (DTV) receivers by incorporating a channel-matched filter (CMF) and an intelligent slicer. Decbion f’cedback ey7iulizer.s (DFEs) have been generally used for ATSC DTV receivers but .stflevfboni error propagation occurying in severe ghosts andor low signal-to-noise rario (SNR) conditions. Severe channel properties. such as a 0-dB ghost, become manageable in the DFE by the use ofthe CMFprior to the DFE. The intelligent .slicer which is a trellis decoder wit17 a trace-hack depth of I enhatices correct-decision probabilih/ in 1/7e DFE, especiallv under low SNR conditions. The adoption oJtlie CMF and the intelligent slicer makes the DFE deal with ,severe ghosts under low SNR conditions b. reducing error propagation. In addition. an initialization scheme of’ the DFE tap coeflkients is used to overcome the shortness of the training sequence and speed up the convergence of’the DFE. Simulation results shon that the proposed method is more efective and more stable than exi.sting methods in severe channels, such a.s a 0 dB mziltipatli condition. Index Terms Channel-matched filter, decision-feedback equalizer, DTV.","PeriodicalId":169376,"journal":{"name":"IEEE International Symposium on Consumer Electronics, 2004","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121754023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Implementation of smart home control using LabVIEW/sup TM/ and PDA","authors":"Sang-Min Baek, K. Chang, I. Shim, G. Park","doi":"10.1109/ISCE.2004.1376009","DOIUrl":"https://doi.org/10.1109/ISCE.2004.1376009","url":null,"abstract":"People want to control various facili1ie.s regard1e.ss locution in uhi9uitori.s era. Therefore we have a various devices embedded ~vire1es.s fcinctiuns. In t1ii.v paper we intplement a control program in U PDA that used Wireless LAN among wireless protocols. The objectives of this puper are: The ,f irst. to make a control program in server and a wireless client (PDA) rising WLAN The second, to implement smart home model. The third. to propose ri,sefril frinctions in I home control.^.^. Index Terms LabVIEW, LabVIEW PDA Module, PDA. Wireless Lan, WLAN, Smart Home, Ubiquitous.","PeriodicalId":169376,"journal":{"name":"IEEE International Symposium on Consumer Electronics, 2004","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125585659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tool-aided performance analysis and optimization of an H.264 decoder for embedded systems","authors":"H. Hübert, B. Stabernack, H. Richter","doi":"10.1109/ISCE.2004.1375977","DOIUrl":"https://doi.org/10.1109/ISCE.2004.1375977","url":null,"abstract":"~ Current emhedded system plo[/nmis .firl/ill the reyrrirements of compntationol and data intensive multimedia upplicatioris. However, the software and hut-dware urchitectrrre musf be optimized in order use tlir avuiluhle re.yoIirce.s @cient/y and achieve flw reqirired real-time performance. We present the optimizafiun process ofan H.264 decoder. We designed un unul.v.si.s tool which aids z r s during this process by providing detoiled per/i\"ce and data frunsfcr stofistics of the decoder sofhvare'. Index Terms Embedded System, Multimedia, Software Optimization, Video Compression.","PeriodicalId":169376,"journal":{"name":"IEEE International Symposium on Consumer Electronics, 2004","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122457136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Edge-and-motion-based semantic video object extraction and application to scene composition","authors":"Yih-Haw Jan, D. Lin","doi":"10.1109/ISCE.2004.1375965","DOIUrl":"https://doi.org/10.1109/ISCE.2004.1375965","url":null,"abstract":"The automatic segmentation of natural video for content-based applications is considered. In particular, a segmentation algorithm that uses both motion and edge information is proposed. It applies the edge-linking approach to determine accurately the boundaries of objects and bidirectional motion estimation to track robustly the motion of objects and changes in shape. The design of the algorithm considers computational complexity. Since composition using segmented objects is further considered. A method of enlarging or shrinking objects for such a purpose is described and evaluated. The method is amenable to spatial-scalable coding.","PeriodicalId":169376,"journal":{"name":"IEEE International Symposium on Consumer Electronics, 2004","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123211749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}